Anyone else ever got to dry hump on Mom ? I did it

Was very intense and erotic. Started out accidental me catching my mom half dressed. It was only her and I home at the time. Shes was a ample very solid built woman. She was in the upstairs hallway wearing a full black slip,bra and silky pantie. She gave me a strange look when I squeezed by her to go to my room. I returned to where she stood scared,nervous face fire red. However I did it !! The thing only sons dream about doing. I just reached right out n felt her round thick slip ass !! Shes stayed silent, me being a horny hormone enraged teenager I be became rock hard ! She was nervous as I felt and caressed her firm roundish slip and pantie clad ass. I could however hear Moms brerath becoming heavy. Nothing was said at all,just looks of confusion buy her,and my my red hot nervous face staring at her. I was so erect and hard in my running shorts. A big tent !! Finally I just did it. I held her silky material hips from behind her and began to hump n slide up and down her rear ! I heard her lightly gasp a little.
To my amazement she leaned way forward rounding that grown solid Mom ass back her with hand palms on the little hall way table, she had a look of liking all of this. She stared at me intense as I got harder and harder in my shorts humping up and down her beautiful material clad rump. I heard her whisper to me,"get it out and do this son". I was amazed and so horny my own mom giving in to this grinding and dry humping. I let my cock spring out rock hard riding her slip covered ample ass. Then I head heard her say weakly, Cum son ! cum right on me back there ! Give it to me !! Ohhh I burst and spurted the hottest biggest load of cum ever ! This was unreal and erotic to be doing. It ran down the shiny slip material over her roundness back there and between the material indented ass crack. We quietly parted Mom quietly slipping off in her cum soaked slip and pantie to her room. Nothing more ever mentioned about this ! It was wonderful !